Knowing what to do and doing it: The first is easy. Everyone knows what to do.
Doing it? It must be hard. It must be difficult. Because so few do what needs to be done.
Lose weight/lay off the sugar? You know it’s good for you. Exercise? Meet deadline? Discipline your life? You know what to do. Just do it. Just get started.
What’s keeping you? Just you: Overcome inertia. Overcome inertia and live. Live before you have no life left to live. Never say die until you’re dead.
Not hard. Not hard. Why act as if it’s impossible?